80 Yamaha still not right, shop wants to replace all 4 carbs

james · Posted: Fri Aug 03, 2007 11:47 am Post subject:

what is the consensus on the product called "PRG"

I have been using it for about a year, what do you all think of it?

James

Sea Wolf · Posted: Fri Aug 03, 2007 12:52 pm Post subject:

James-

What is PRG?

I looked through 12 pages of a Google Search for "PRG" and found nothing related to boats. Ditto in the WM website.

Joe.

C-WEED · Posted: Fri Aug 03, 2007 2:18 pm Post subject:

Try PRI-G. It is an alternative to the Yamaha recommended "Ring Free". It is not widely available and I don't care for the price. My used boat came with half a bottle. I used it and forgot about it since it isn't locally available where I live. The next time I pull the spark plugs: If there is no carbon on them I will assume there is no carbon elsewhere in the combustion chamber. I have a light that will fit thru the plug hole. I'll have a look inside next time.

http://www.westmarine.com/webapp/wcs/stores/servlet/SiteSearchView?catalogId=10001&Ntx=mode+matchallpartial&keyword=fuel+additive+PRIG&Ntt=fuel+additive+PRIG&N=377+710&storeId=10001&Ntk=Primary+Search&ddkey=SiteSearch

Maybe the link to WM will work.

james · Posted: Mon Aug 06, 2007 2:36 pm Post subject:

sorry about the name confusion....

west marine sells it, it is not expensive at all,$22 will treat a lot of fuel.

if it does half of what it says, I would be happy.

James

thataway · Posted: Mon Aug 06, 2007 9:31 pm Post subject:

I have several friends who are sold on the PRI G and the PRI D which is a diesel additative. I have consdered them similar to Stabil, which I use regularly. But certainly wouldn't hurt to use. Not sure how that relates to Ring Free, which is a Yahama recommended product. But there are all sorts of products which are susposed to keep carbon deposition to a minum. My understanding is that many outboard mechanics do like the Yahama "Ring Free". Of course the old standard is "Marvel Mystery Oil"--which seems to have been around as long as internal combustion engines have been...All of this may be snake oil, or not, but I currently only add Stabil and Startron--and am not sure that the latter does much in gas engines...

Beartrack · Posted: Wed Aug 08, 2007 12:02 am Post subject:

Anyone have any information on how these would relate to say the Lucas brand additive "Fuel Additive, Fuel Treatment, Upper Cylinder Lubricant and Injector Cleaner"?

I purchased some of this stuff and was going to give it a whirl this weekend... below is a link that describes it's (advertised) benefits in greater detail.

http://www.autobarn.net/luc10003.html

-Beartrack